Integrated Photovoltaic, Energy Storage & Charging System: Hybrid DC Bus Solution for Enhanced Efficiency
System Overview
The integrated photovoltaic, energy storage, and charging system employs a hybrid bus architecture, utilizing direct current (DC) buses to interconnect photovoltaic panels, energy storage units, and charging terminals. This design significantly enhances storage and charging efficiency compared to traditional alternating current (AC) bus systems. Distributed in nature, the system comprises power cabinets, battery cabinets, and charging terminals, enabling flexible deployment of charging power and energy storage capacity tailored to specific application scenarios. It excels in charging environments with limited distribution capacity and substantial peak-valley price differentials, delivering dynamic capacity expansion and peak-valley arbitrage value to customers.
Key Features
Flexible Configuration
- Customizable Deployment: Tailor the number of battery cabinets, power cabinets, and charging terminals to site-specific requirements.
- Modular Functionality: Select modules for charging, energy storage, photovoltaic integration, and V2G (Vehicle-to-Grid) based on functional needs.
Dynamic Capacity Expansion
- Non-Charging Period Storage: Store energy in batteries during low-demand periods.
- Simultaneous Charging: During peak charging times, the grid, photovoltaic power, and batteries jointly charge vehicles, doubling charging power and reducing grid dependency.
DC Bus Architecture
- Unified Energy Management: Connect energy storage and charging systems via a unified DC bus, enhancing energy conversion efficiency and simplifying EMS (Energy Management System) management.
Powerful Functions
- Peak Shaving & Valley Filling: Optimize energy usage by balancing peak and off-peak demand.
- New Energy Integration: Seamlessly incorporate renewable energy sources for sustainable charging.
- Load-Side Response: Adjust energy consumption in response to grid demand fluctuations.
- Emergency Power Supply: Provide reliable backup power during grid outages.
- Vehicle Battery Testing: Conduct comprehensive battery diagnostics and testing.
Application Scenarios
Supercharging Stations on Major Traffic Arteries
- Enhanced Traffic Flow: Dynamic capacity expansion and high-power supercharging capabilities improve charging efficiency and throughput.
Supercharging Stations on Highways
- Cost-Effective Multi-Energy Integration: Reduce power distribution costs by leveraging multiple energy sources for charging.
Sites with Insufficient Power Distribution
- High-Power Charging with Limited Capacity: Dynamic capacity expansion enables high-power charging even with constrained distribution capacity, ensuring reliable charging services.
Keywords: Integrated Photovoltaic System, Energy Storage, Charging System, Hybrid DC Bus, Dynamic Capacity Expansion, Peak-Valley Arbitrage, Supercharging Stations, Renewable Energy Integration
